Note 12 - Related Party Transactions (Tables)
 12 Months Ended
Dec. 31, 2016
Notes Tables  
Schedule of Related Party Transactions [Table Text Block]
Balance at December 31, 2015
   $
5,904
 
New loans
    
83
 
Repayments
    
(742
 )
Balance at December 31, 2016
   $
5,245